Earth scraper



Sept. 9. 1924; 1,508,322

R. J. HELLER EARTH SCRAPER Filed July 6, 1923 o J7 1" 71 Q o .H o0 M o 0O/Ee o O. o 0 o 77 o 0 0 K v 7 JV T mall whom it mayroncern:

sing, in the county of .Miclngan, have nvented certain new and.

sand or gravel of whatever sity may be readily handled. Furthermore,

Patented Sept. 9, i924.

iseasza 'IRAY J. HELLER, or nnnsrne,

iii-Iceman. i

. nan'rn SGRAPE'RI Application. fil ed Jilly 6. 1923. [semi r cesses,

Be it known that I, RAY J HELLER, citizen of the United States, res dingat Lan- Ingham. and State of useful Improvements in Earth Scrapers, of

. which the following is a specification.

This invention relates to earth. scrapers, .for road work or excavationsor the lrke and "has for its object the production of .a scoop or shovelbody intended to be drawn along by horses or tractor force,and havingparts of special construction and arrangement comprising a plurality ofscraper bladesof which at least one is adjustable with respect to theside walls, and having a top extend- .ing between the sides. It isbelieved that by he combination of a number of scraper blades, one inadvance of another, and adjustable one with respect to another, packedweight or denby having a top plate or member of suitable size andlocation, when the scraper becomes filled it will tilt up and cease itsdigging action instead of merely continuing and overflowing.

In the accompanying drawings the particular formation and disposition ofthe parts .are illustrated, and Fig. .1 represents a view from the frontandin perspective of the usual form of this invention, showing all,parts assembled. Fig. 2 is .a view from the front and in perspective ofan important modified form of this invention showving the'individualorsmaller scraper blades arranged at the sides. All parts are shownassembled "n this view. Fig. 3 is an inside view of the lower frontcorner portion of one side, and shows the auxiliary scraper bladepivotally connected with the side in such manner that when the scraperis drawn forward the blade will excavate, but when the scraper is drawnbackward the blade will lift.

Throughout the drawings and eXplanathe drawings, Fig. 1, there verticaldivergent sldes A in a higher or lower position,

truck or out of the :excavation.

to the sides :by

B and the back it is suitably secured. Angle irons conmeet the, plate Cwith the sides, and the plates andangle ironsflare secured by bolts '(Z.While in practice removable bolts are employed, this invention .is notlimited to the use of bolts, and be riveted together in the commonmanner.

any plarts desired anay The front or auxiliary blade is markedIE,

and the angle irons connecting .it with the sides are referred to theletter .6. The angle ir onse are secure several rows of boltholesarrangedin .-inclined lines to providefor the adjustment of theauxiliary blade with-respect .to the sides.

Figs. 1 and 2, the sidel ole's f perm-itthe auxiliary scraper orscrapersto be adjusted and also an advanced position w th respecttothctrear of theoscraper.

7 dto thesides'bybolts F, and it will be observed that there are It willbe observed that as shown in Near the frontv edge ofieachlof ,the sidesA and a,

will be noted the-vertical rows-of holes G.

'These holes are intended :to beengaged by any suitable coupling deviceto the sides will also be seen the connect the scraper with horses or atrac- :1 .tor. Through horizontal rows of .holes ;g, and these areintended for engagement with any desired hoisting mechanism by which thescraper may be raised and movedto dump into a Considering themodification .1

the top Land the backgi. '5 The main -.scraper shown and alreadyexplained. The angle irons are marked M and theb'olts m.- In themodification the auxiliary scrapers are individual plates N and N andthe inclined rows of holes 0 are shown in the side it, and there aresimilar rows of holes in the side H, for the adjustment of theindividual auxiliary scraper blades N and N separately. The angle ironsand bolts used are the. same as already described, and are of commonform and operation. In the modification the vertical rows of holes nearthe edges of the sides for engagement with the draught appliances aredesignated P, and the horizontal rows of holes Q are provided as beforefor the hoist connections.

Considering Fig. 3, there is shown the l I llustrated .in F g. 2, thesldes are des 1gnated;H-;and h,

I end.

lowerforward corner of a side R. There are inclined rows .of holes 9 forthe adjustment of the auxiliary blade carrier or angle iron The bladeitself is marked T, and below it will be noted the stop bolt t. WVhentheblade T is pivoted in one of the holes 1* of an upper row of holes, thestop bolt may engage one of the lower holes. While it is occasionally ofadvantage to pivot the scraper blades, or the scraper as a whole, thisinvention is in no sense limited thereto or to any special devices forattaining that In the operation of this invention under what may beregarded as one of the natural con itions met with, let it be assumedthat a gravel bank is to be excavated, and. that the material issomewhat dense and heavy. It

- is believed to be readily discernible from the auxiliary or advanced ahigher level between off the top layer or stratum of the gravel deposit,and the following main scraper blade will take up another layer,rendering the operation of taking up the whole scraper load much easierand consequently more rapid. The operation of the modification is thesame, and the individual auxiliary scraper blades efiectively loosen thetop of the sand or gravel body for the action of the main scraperfollowing. Oftentimes it is necessary to draw the scraper directlybackward on the ground, and to avoid the retardation and dragging effectof the scrapers they may be pivoted as illustrated in Fig. 3. l/Vhen soattached the scrapers will dig when drawn forward, but will lift andslide over the earth when drawn backward.

Having now described this invention, and explained the mode of itsoperation, what I claim is 1. In a scraper, the combination with thedrawings that the scraper beingset at the sides will take sides, of atop plate connecting the sides, a

back plate connecting the sides, a downwardly inclined scraperbladesecured to the sides adjacent to the back plate, the said top plateextending over the said blade in a forwardly direction for a distancesubstantially equal to the extent of the said blade in the samedirection, and an auxiliary blade mounted in an inclined position inadvance of the first mentioned blade.

2. In a scraper, the combination with the sides, of a top plateconnecting the sides, a back plate connecting the sides, a. down wardlyinclined scraper blade secured to the sides adjacent to the back plate,the said top plate extending over the said blade for a distancesubstantially equal to the extent of the said blade in the samedirection, an auxiliary blade mounted in an inclined position in advanceof the first mentioned blade, and the said sides having a vertical rowof holes whereby the draft cable may be attached higher or lower withrespect to the said blades.

3. In a scraper, the combination with the sides, of a top plateconnecting th: sides, a back plate connecting the sides, a downwardlyinclined scraper blade secured to the sides adjacent to the back plate,the said top plate extending over the said blade for a distancesubstantially equal to the extent of the said blade in the samedirection, an auxiliary blade mounted in an inclined position in advanceof the blade first mentioned, and means for adjusting the auxiliaryblade in position.

4. In a scraper, the combination with the sides, of a top plateconnecting the sides, a back plate connecting the sides, a downwardlyinclined scraper blade secured to the sides adjacent to the back plate,the said top plate extending over the said blade, an auxiliary blademounted in an inclined position in advance of the blade first mentioned,and means for adjusting the auxiliary blade in a higher or lowerposition and in a forward or rearward position with respect to the backplate.

In testimony whereof I afiix my signature.

RAY J. HELLER.

